(19)

(11)

EP 0 543 929 A1

(12)

(43) Date of publication: 02.06.1993 Bulletin 1993/22 (21) Application number: 91916366.0 (22) Date of filing: 15.08.1991

(51) International Patent Classification (IPC):  A63C 19/ 10( . ) E04H 4/ 00( . ) A63G 21/ 18( . ) (86) International application number: PCT/US1991/005783 (87) International publication number: WO 1992/003201 (05.03.1992 Gazette 1992/06)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU NL SE (30) Priority: 15.08.1990 US 19900568278 (71) Applicant: LOCHTEFELD, Thomas J. La Jolla, CA 92037-7251 (US)	(72) Inventor: LOCHTEFELD, Thomas J. La Jolla, CA 92037-7251 (US) (74) Representative: Wilson, Nicholas Martin  WITHERS & ROGERS 4 Dyer's Buildings Holborn London EC1N 2JT London EC1N 2JT (GB)